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There are currently five places that scroll offsets are stored: - DOM: A set of scroll offsets used for script. - Layout: An array of scroll offsets that is used for tracking layout-side scroll offsets. - Layout: The scroll offsets stored in the `ScrollTree`. These are currently unset and unused. - Compositor: The scroll offsets stored in the `ScrollTree` mirrored from layout. - WebRender: The scrolled offsets stored in the WebRender spatial tree. This change is the first step in combining the first three into the layout `ScrollTree`. It eliminates the extra array of scroll offsets stored in layout in favor of the storing them in the `ScrollTree`. A followup change will eliminate the ones stored in the DOM. - In addition the `ScrollState` data structure is eliminated as these are now stored in a `HashMap` everywhere when passing them via IPC. - The offsests stored in layout can now never scroll past the boundaries of the scrolled content. Testing: This should not change behavior and is thus covered by existing WPT tests. Signed-off-by: Martin Robinson <mrobinson@igalia.com> Co-authored-by: stevennovaryo <steven.novaryo@gmail.com> |
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| .. | ||
| display_list | ||
| flexbox | ||
| flow | ||
| fragment_tree | ||
| stylesheets | ||
| table | ||
| taffy | ||
| tests | ||
| Cargo.toml | ||
| cell.rs | ||
| construct_modern.rs | ||
| context.rs | ||
| dom.rs | ||
| dom_traversal.rs | ||
| formatting_contexts.rs | ||
| geom.rs | ||
| layout_box_base.rs | ||
| layout_impl.rs | ||
| lib.rs | ||
| lists.rs | ||
| positioned.rs | ||
| query.rs | ||
| quotes.rs | ||
| replaced.rs | ||
| sizing.rs | ||
| style_ext.rs | ||
| traversal.rs | ||